Home / 5,179.82-7,769.66-1,284.26

Finding the Fourth Proportional to 5,179.82, 7,769.66 and 1,284.26

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Solution

The fourth proportional to 5,179.82, 7,769.66 and 1,284.26 is: 1,926.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.82 : 7,769.66 = 1,284.26 : x
  2. Step 2: Convert to fraction form
    5,179.82/7,769.66 = 1,284.26/x
  3. Step 3: Cross multiply
    5,179.82x = 7,769.66 × 1,284.26
  4. Step 4: Simplify right side
    5,179.82x = 9,978,218.28
  5. Step 5: Solve for x
    x = 9,978,218.28/5,179.82
  6. Step 6: Final answer
    x = 1,926.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.